The volumes in this series encompass the development and application of numerical techniques to electrical systems@ including the modeling of electromagnetic phenomena over all frequency ranges and closely-related techniques for acoustic and optical analysis. The scope includes the use of computation for engineering design and optimization@ as well as the application of commercial modeling tools to practical problems. The series will include titles for undergraduate and graduate education@ research monographs for reference@ and practitioner guides and handbooks. Author(s) Wenhua Yu@ Xiaoling Yang@ Wenxing Li